Device for cleaning the shower-pipes used in paper-mills



(No Model. I

G. H. BOORN. DEVICE FOR CLEANING THE SHOWER PIPES USED IN PAPER MILLS.

No. 374,290. Patented Dec; 6, 1887-.

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W I pwi UNITED STAT S PATENT OFFICE.

GEORGE HENRY BOORN, OF BELLOWVS FALLS, ASSIGNOR OF ONE-HALF TO CHARLES E. ROBERTSON, OF ROOKINGHAM, VERMONT.

DEVICE FOR CLEANING THE SHOWER-PIPES USED IN PAPER-MILLS.

SPECIFICATION forming part of Letters Patent No. 374,290, dated December 6, 1887.

Application filed June 2, 1887. Serial No. 240,061. (No model.)

To aZZ whom it may concern.-

Be it known that I, GEORGE HENRY BOORN, a citizen of the United States, residing at Bellows Falls, in the county of \Vindham and State of Vermont, have invented a new and useful Improvement in Devices for Cleaning the Shower-Pipes used in Paper -Mills, of which the following is a specification.

My invention relates to an improvement in devices for cleaning the shower-pipes used in paper-mills; and it consists in the peculiar I construction and combination of devices, that will be more fully set forth hereinafter, and particularly pointed out in the claims.

The object of my invention is to provide devices adapted to clean the shower-pipes of paper-mills and to open the perforations therein when the same become clogged or stopped up while the mill is in operation, and without the necessity of stopping the flow of water through the pipes.

In the accompanying drawings, Figure l is an elevation of a shower-pipe provided with my improved cleaning devices. Fig. 2 is a vertical longitudinal sectional view of the same. Fig. 3 is a transverse sectional View taken on the line on w of Fig. 2. Fig. 4 is a longitudinal sectional view of a modified form of my invention. Fig. 5 is a detailed perspective view of the piston.

A represents the shower-pipe, provided on one side with the usual openings or perforations, B. This s'howerpipe is exteriorly threaded at one end, (not shown,) and thereby adapted to be connected to a water-supply pipe, through which water is introduced under pressure, and to the opposite end of the shower-pipe is screwed a cap, 0. This cap is plglovided with a packing-box, D, on its outer s1 e.

E represents a piston or plunger, which fits snugly in the pipe A and is adapted to move longitudinally therein. This piston or plunger is provided with a longitudinal bore, F, and has at its outer end a transverse groove or recess, G, which communicates with the bore and is of suitable depth. At the bottom of the recess G and on opposite sides of the same are formed recesses H, which communicate therewith.

I represents an operating-rod, which extends through the packing-box and through the bore ofthe piston or plunger, and is provided at its inner end with a T-shaped head, K. The length of this rod is equal to the length of the pipe A, and .to the outer end of the rod is attached a handle or wheel, L.

The operation of my invention is as follows: The rod has its T-head K normally disengaged from the plunger or piston E, and the said rod is extended entirely through the length of the pipe A while the plunger or piston is at the outer end of the said pipe, thus permitting the unobstructed flow of water through the pipe A and through the openings B. When the pipe becomes fouled with sedi' merit, and the openings B become partly clogged and stopped up therewith, the rod I is drawn outward by means of a handle, L, and is turned to cause the T-shaped head K to enter the recess G. When the said head reaches the bottom of the said recess, a partial rotation or turn is given to the rod, which causes the head K to move into the recesses H, which communicate withthe lower side of the recess G. This secures the head to the piston or plunger, and the operator then forces the rod I inward, thereby causing the pis ton or plunger to move through the pipe A with the head of the rod I against thepressure of the water in the pipe, and thus effectually clear out the pipe and the openings B therein by compressing the water in the said pipe to such an extent as to cause it to force the obstructions from the openings B as the water escapes through the same.

In Fig. 4 I illustrate a modified form of my invention, in which I dispense with the T- shaped head K and provide the end of the rod I'with screw-th reads Kinstead. The bore of 0 the piston or plunger is provided with screwthreads adapted to engage the threads K, and the outer side of the piston or plunger has a stud or offset, E, adapted to engage a recess in the annular flange of the cap (3. It will be readily understood by reference to the drawings that the stud and recess prevent the piston from rotating while the rod is being turned to connect its threaded end to or disconnect the threaded end from the piston, the operation of the latter being the same as in the previous instance.

By reference to Figs. 1 and 2 it will be observed that the packing-box is provided on its lower side with an outlet, a, having a screwplug, 2). After the openings in the pipe have been cleared by moving the plunger through the pipe, as previously described, and while the piston or plunger is at the outer end of the pipe, the plug is unscrewed from the outlet at, thus permitting the escape of sand and particles of dirt and waste from the pipe.

Having thus described my invention, I claim- 1. The combination of the perforated shower-pipe A, the piston therein, and the rod I, the inner end of the said rod being adapted to be connected to or disconnected from the piston, for the purpose set forth, substantially as described.

2. The combination of the pipe A, the piston therein, having the recess G and the communicating recesses H, and the longitudinallymovable rod I, extending through the closed end of the pipe and through the longitudinal bore in thepiston', said rod being provided at its inner end with a head, K, adapted to engage the recesses in the piston and thereby connect the rod thereto or disconnect the rod from the same, for the purpose set forth, substantially as described.

3. The combination of the perforated pipe A, having one end closed and provided with the stuffing-box, the longitudinally-movable piston in the said pipe, and the rod I, extending through the stuffing-box and connected to the piston to operate the latter, for the purpose set forth, substantially as described.

4. The combination of the perforated pipe A, having one end closed and provided with the stuffing-box, having the outlet a and the plug I) to close the same, the longitudinallymovable piston in the said pipe, and the rod I, extending through the stuffing-box and connected to the piston to operate the latter, for the purpose set forth, substantially as described.

In testimony that I claim the foregoing as my own I have hereto affixed my signature in presence of two witnesses.

GEORGE HENRY BOORN.

\Vitnesses:

GEORGE A. WEsToN, J AS. H. WILLIAMs. 

